Madimack EcoSpin Centrifugal Pre-Filtration System for Swimming PoolsecoSPIN Pool Pre Filter Protecting Your Filtration System from the Start The ecoSPIN Pre Filter is engineered to capture sediment before it ever reaches your main pool filter. Installed at the front end of the plumbing system, it removes up to 80% of incoming dirt and debris before it can load sand, cartridge, or DE media. By reducing the amount of sediment circulating through your equipment, ecoSPIN improves water clarity and decreases stress on your